1219122 has 24 divisors (see below), whose sum is σ = 2674620. Its totient is φ = 401280.

The previous prime is 1219111. The next prime is 1219123. The reversal of 1219122 is 2219121.

It can be written as a sum of positive squares in 2 ways, for example, as 904401 + 314721 = 951^2 + 561^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1219095 and 1219104.

It is not an unprimeable number, because it can be changed into a prime (1219123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1222 + ... + 1982.

2^1219122 is an apocalyptic number.

1219122 is an abundant number, since it is smaller than the sum of its proper divisors (1455498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1219122 is a wasteful number, since it uses less digits than its factorization.

1219122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 855 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1219122 is about 1104.1385782591. The cubic root of 1219122 is about 106.8273338277.

Subtracting 1219122 from its reverse (2219121), we obtain a palindrome (999999).

The spelling of 1219122 in words is "one million, two hundred nineteen thousand, one hundred twenty-two".